For the first time since receiving three government bailouts during the 2007-2009 financial crisis, Citigroup c on Tuesday is holding a day-long conference for investors, marking another step in the recovery of what was once the biggest U.S. bank.

The meeting in New York, for about 250 invited stock analysts and investors, plus anyone who wants to listen over the internet, comes four weeks after the Federal Reserve said it would allow Citigroup to...